“蜂鸣器”造句

蜂鸣器突然相应地发出了一声响亮的长鸣。
The buzzer suddenly responded in a long blast of sound.

蜂鸣器在8点钟时响了.
The buzzer went off at eight o'clock.

你想讲话的时候就按蜂鸣器.
Press the buzzer when you want to talk.

• #蜂鸣器